package com.qf.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

/**
 * @author 孙亚梅
 * @version V1.0
 * @Project javase2203
 * @Package com.qf.filter
 * @Description:
 * @Date 2022/5/23 21:18
 */
@WebFilter("/*")
public class EncodingFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
   //处理请求对象字符集编码
     servletRequest.setCharacterEncoding("utf-8");
    //处理响应对象字符集编码
     servletResponse.setCharacterEncoding("utf-8");
     servletResponse.setContentType("text/html;charset=utf-8");

     //放行请求，到下一个过滤器
     filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {

    }
}
